/* ===========================================
   REVPEAK — perpustakaan.css
   Dipakai oleh: perpustakaan.html
   Semua CSS variable diwarisi dari style.css
=========================================== */

/* ===========================
   LIB HERO
=========================== */
.lib-hero {
  padding-bottom: 24px;
}

.lib-stats {
  display: flex;
  align-items: center;
  gap: 0;
  margin-top: 22px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  width: fit-content;
  flex-wrap: wrap;
  gap: 0;
}

.lib-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 20px;
}

.lib-stat:first-child { padding-left: 0; }
.lib-stat:last-child  { padding-right: 0; }

.lib-stat-value {
  font-family: 'Syne', sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.lib-stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.lib-stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
  flex-shrink: 0;
}

/* ===========================
   TOOLBAR
=========================== */
.lib-toolbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 97px;
  z-index: 180;
  padding: 10px 0 0;
}

.lib-toolbar-top {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding-bottom: 10px;
}

/* Search dalam toolbar buku */
.lib-search-wrap {
  position: relative;
  flex: 1;
  min-width: 160px;
  max-width: 340px;
}

.lib-search-icon {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  pointer-events: none;
}

.lib-search-input {
  width: 100%;
  padding: 9px 12px 9px 34px;
  border: 1.5px solid var(--border);
  border-radius: 50px;
  background: var(--surface2);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.lib-search-input::placeholder { color: var(--text-light); }
.lib-search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
}

/* Selects wrapper */
.lib-selects {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* View toggle */
.lib-view-toggle {
  display: flex;
  gap: 2px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px;
  background: var(--surface2);
  flex-shrink: 0;
}

.lib-view-btn {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition);
}

.lib-view-btn:hover  { color: var(--text); }
.lib-view-btn.active { background: var(--surface); color: var(--accent); box-shadow: var(--shadow-sm); }

/* Result count */
.lib-count {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-left: auto;
  white-space: nowrap;
}

/* ===========================
   GENRE BAR (filter chips)
=========================== */
.lib-genre-bar {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 10px;
  flex-wrap: nowrap;
}

.lib-genre-bar::-webkit-scrollbar { display: none; }

.lib-genre-chip {
  padding: 5px 14px;
  border-radius: 50px;
  border: 1.5px solid var(--border);
  background: transparent;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all var(--transition);
}

.lib-genre-chip:hover { border-color: var(--text-muted); color: var(--text); }
.lib-genre-chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ===========================
   MAIN SECTION
=========================== */
.lib-main {
  padding: 28px 0 56px;
}

/* ===========================
   BOOK GRID
=========================== */
.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
  gap: 24px 14px;
}

/* ===========================
   BOOK CARD (grid view)
=========================== */
.book-card {
  display: flex;
  flex-direction: column;
  animation: bookFadeUp 0.35s ease both;
}

@keyframes bookFadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Animasi stagger */
.book-card:nth-child(1)  { animation-delay: 0.04s; }
.book-card:nth-child(2)  { animation-delay: 0.08s; }
.book-card:nth-child(3)  { animation-delay: 0.12s; }
.book-card:nth-child(4)  { animation-delay: 0.16s; }
.book-card:nth-child(5)  { animation-delay: 0.20s; }
.book-card:nth-child(6)  { animation-delay: 0.24s; }
.book-card:nth-child(n+7){ animation-delay: 0.28s; }

/* Cover wrapper — rasio 9:16 (portrait seperti sampul buku asli) */
.book-cover-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 16;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface2);
  box-shadow: var(--shadow-sm);
  display: block;
  transition: transform var(--transition), box-shadow var(--transition);
}

.book-card:hover .book-cover-wrap {
  transform: translateY(-4px) rotate(0.4deg);
  box-shadow: var(--shadow-md);
}

.book-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.book-card:hover .book-cover-img {
  transform: scale(1.04);
}

/* Badge genre — pojok kiri atas cover */
.book-genre-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  font-size: 0.6rem;
  font-weight: 700;
  font-family: 'Syne', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 3px 8px;
  border-radius: 50px;
  background: var(--accent);
  color: #fff;
  z-index: 2;
  pointer-events: none;
  max-width: calc(100% - 16px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Badge format file — pojok kiri bawah cover */
.book-format-badge {
  position: absolute;
  bottom: 8px;
  left: 8px;
  font-size: 0.58rem;
  font-weight: 700;
  font-family: 'Syne', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  z-index: 2;
  pointer-events: none;
  backdrop-filter: blur(4px);
}

/* Tombol bookmark — pojok kanan atas cover */
.book-bookmark-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  opacity: 0;
  transition: opacity var(--transition), background var(--transition);
  backdrop-filter: blur(4px);
}

.book-bookmark-btn svg { width: 13px; height: 13px; pointer-events: none; }
.book-card:hover .book-bookmark-btn     { opacity: 1; }
.book-bookmark-btn:hover                 { background: rgba(0, 0, 0, 0.7); }
.book-bookmark-btn.saved                 { opacity: 1; color: #FFD700; }

/* Hover overlay — muncul saat hover cover */
.book-cover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.88) 0%,
    rgba(0, 0, 0, 0.4)  50%,
    transparent         80%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 12px 10px;
  gap: 5px;
  opacity: 0;
  transition: opacity var(--transition);
  z-index: 1;
}

.book-card:hover .book-cover-overlay { opacity: 1; }

.book-overlay-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  height: 32px;
  border-radius: var(--radius-sm);
  font-family: 'Syne', sans-serif;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: #fff;
  transition: opacity var(--transition), transform 0.15s ease;
  text-align: center;
}

.book-overlay-btn svg { width: 12px; height: 12px; flex-shrink: 0; }

.book-overlay-btn:hover { transform: scale(0.97); }

.book-overlay-read {
  background: var(--accent);
  box-shadow: 0 3px 10px rgba(224, 62, 11, 0.45);
}

.book-overlay-read:hover { background: var(--accent-dark); }

.book-overlay-download {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.book-overlay-download:hover { background: rgba(255, 255, 255, 0.25); }

/* Info di bawah cover */
.book-info {
  padding: 10px 2px 0;
}

.book-title {
  font-family: 'Syne', sans-serif;
  font-size: 0.83rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 3px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.book-title a { color: inherit; }
.book-title a:hover { color: var(--accent); }

.book-author {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.book-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.book-meta-item {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.book-meta-item svg { width: 11px; height: 11px; flex-shrink: 0; }
.book-meta-dot { color: var(--border); font-size: 0.65rem; }

/* ===========================
   LIST VIEW
=========================== */
.book-grid.list-view {
  grid-template-columns: 1fr;
  gap: 10px;
}

.book-grid.list-view .book-card {
  flex-direction: row;
  align-items: flex-start;
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  animation: bookFadeUp 0.3s ease both;
}

.book-grid.list-view .book-card:hover {
  transform: translateX(3px);
  box-shadow: var(--shadow-md);
}

.book-grid.list-view .book-cover-wrap {
  width: 62px;
  flex-shrink: 0;
  aspect-ratio: 9 / 16;
  border-radius: 6px;
}

/* Override hover effect untuk list view */
.book-grid.list-view .book-card:hover .book-cover-wrap {
  transform: none;
  box-shadow: var(--shadow-sm);
}

.book-grid.list-view .book-info {
  padding: 0;
  flex: 1;
  min-width: 0;
}

.book-grid.list-view .book-title {
  font-size: 0.92rem;
  -webkit-line-clamp: 1;
  margin-bottom: 4px;
}

.book-grid.list-view .book-author {
  font-size: 0.82rem;
  margin-bottom: 5px;
}

.book-grid.list-view .book-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Desc hanya tampil di list view */
.book-grid:not(.list-view) .book-desc { display: none; }

/* Tombol unduh di list view */
.book-list-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.book-list-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: 50px;
  font-family: 'Syne', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform 0.15s ease;
}

.book-list-btn svg { width: 12px; height: 12px; }

.book-list-btn-read {
  background: var(--accent);
  color: #fff;
  border: 1.5px solid var(--accent);
}
.book-list-btn-read:hover { background: var(--accent-dark); border-color: var(--accent-dark); }

.book-list-btn-dl {
  background: transparent;
  color: var(--text-muted);
  border: 1.5px solid var(--border);
}
.book-list-btn-dl:hover { border-color: var(--text-muted); color: var(--text); }

/* Sembunyikan overlay di list view */
.book-grid.list-view .book-cover-overlay { display: none; }
.book-grid.list-view .book-bookmark-btn  { display: none; }

/* Tampilkan actions di list view, sembunyikan di grid view */
.book-grid:not(.list-view) .book-list-actions { display: none; }

/* ===========================
   SKELETON BUKU
=========================== */
.book-skeleton {
  display: flex;
  flex-direction: column;
}

.bsk-cover {
  width: 100%;
  aspect-ratio: 9 / 16;
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
}

.bsk-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 0 2px;
}

.bsk-line {
  height: 11px;
  border-radius: 4px;
}

.bsk-t1 { width: 90%; }
.bsk-t2 { width: 65%; }
.bsk-t3 { width: 45%; }

/* ===========================
   EMPTY / ERROR
=========================== */
.book-grid .empty-state,
.book-grid .error-state {
  grid-column: 1 / -1;
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 900px) {
  .lib-toolbar { top: 88px; }
  .lib-stats   { flex-wrap: wrap; }
}

@media (max-width: 640px) {
  .book-grid {
    grid-template-columns: repeat(auto-fill, minmax(128px, 1fr));
    gap: 18px 10px;
  }
  .lib-toolbar-top { gap: 8px; }
  .lib-selects     { gap: 6px; }
  .lib-count       { display: none; }
  .lib-stats       { width: 100%; justify-content: flex-start; }
}

@media (max-width: 380px) {
  .book-grid { grid-template-columns: repeat(2, 1fr); }
}